ESR study of electrochemical doping in the conducting polymer polypyrrole
Por:
Genoud F., Guglielmi M., Nechtschein M., Genies E., Salmon M.
Publicada:
1 ene 1985
Resumen:
Steady-state and transient measurements of spin concentration have been carried out as a function of electrochemical charge injection in polypyrrole. A maximum of one spin per ?10 pyrrole units has been observed for about 50% of the maximum charge. The data are interpreted in terms of quasiequilibrium polaron and bipolaron populations resulting from a two-step redox process. Surprisingly, it appears that at low doping levels, bipolaron formation is not favorable compared to formation of two polarons. © 1985 The American Physical Society.
Filiaciones:
Genoud F.:
Service de Physique/Dynamique de Spin et Proprietes Electroniques, Departement de Recherche Fondamentale, Centre d'Etudes Nucléaires de Grenoble, 85X, 38041 Grenoble Cedex, France
Guglielmi M.:
Service de Physique/Dynamique de Spin et Proprietes Electroniques, Departement de Recherche Fondamentale, Centre d'Etudes Nucléaires de Grenoble, 85X, 38041 Grenoble Cedex, France
Nechtschein M.:
Service de Physique/Dynamique de Spin et Proprietes Electroniques, Departement de Recherche Fondamentale, Centre d'Etudes Nucléaires de Grenoble, 85X, 38041 Grenoble Cedex, France
Genies E.:
Laboratoires de Chimie, Departement de Recherche Fondamentale, Centre d'Etudes Nucléaires de Grenoble, 85X, 38041 Grenoble Cedex, France
Salmon M.:
Laboratoires de Chimie, Departement de Recherche Fondamentale, Centre d'Etudes Nucléaires de Grenoble, 85X, 38041 Grenoble Cedex, France
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